In video production, what does B-roll refer to?

• A. Supplemental footage used to enrich the main footage
• B. Primary audio track
• C. On-screen graphics
• D. Final color grade

Answer: (A)

B-roll is supplementary video footage that accompanies the main shots to enrich the storytelling. It provides visual context, detail, and atmosphere—like cutaway shots, establishing shots, or scenes showing actions related to the narration—and is especially useful for covering edits, maintaining rhythm, and keeping the audience visually engaged. In practice, you might cut away to B-roll while something is being explained, then return to the main footage, or use it between scenes to bridge transitions.

The other options describe elements that are not B-roll: the primary audio track is the main sound, such as dialogue or narration; on-screen graphics are overlays like titles or lower thirds; and the final color grade refers to the overall color correction and stylistic look applied in post-production.